Registering plug-in solar with UK Power Networks
UK Power Networks (UKPN) runs the electricity network in London, the South East and the East of England. If you've plugged in a balcony solar kit there, registering it takes a couple of minutes online: it's free, and you don't need UKPN's permission.
Step by step
- Check your kit is on the ENA register. It must be listed Compliant on the ENA Type Test Register ↗ , with a factory-fitted UK plug and no battery. Kits that don't qualify can't be self-installed.
- Gather your details: your MPAN (13-digit supply number on any electricity bill), the kit make and model and the date you plugged in.
- Register at myplugin.solar ↗ and the national portal routes it to UKPN for you. Do this within 28 days of plugging in.
- Keep the reference number. You may need it if you move, change the system or switch to an export tariff later.
Plug-in registration route checked 28 September 2026.
Not a plug-in kit?
Hardwired systems, anything with a battery, and larger arrays fall outside the plug-in rules. They're notified to UKPN under G98 (or G99), normally by your installer. Route: Online form (Smart Connect portal). UKPN's G98 page ↗
G98 process last checked 2026-07-02. If UKPN has changed its forms, its website is authoritative.
Postcode areas UKPN covers
AL · BN · BR · CB · CM · CO · CR · CT · DA · E · EC · EN · GU · HA · HP · IG · IP · KT · LU · ME · MK · N · NR · NW · PE · RH · RM · SE · SG · SM · SS · SW · TN · TW · UB · W · WC · WD
Near a boundary or not sure? Use our postcode checker or check the supply number section of your bill.